The Hopalong Cassidy radio program ran from 1948 to 1952, and was based on the popular movie and television series featuring William Boyd as Hopalong Cassidy.
Hopalong Cassidy was the star of a series of novels set at the Bar 20 Ranch. They were written by Clarence E. Mulford over a span of 35 years, and had been the basis for a series of 66 movies between 1935 and 1948. The movies were adapted into a television show that originally ran at the same time as the radio program, and the licensing blitz that followed the show's popularity made "Hoppy" into one of the first multimedia sensations.
The radio show featured new adventures, as well as adaptations of the popular movies and some of the TV episodes. William Boyd voiced Hopalong Cassidy, and Andy Clyde co-starred as California Carson, Hoppy's sidekick in many of the later movies.
From the Old Time Radio Researchers Group. See "Notes" Section below for more information on the OTRR.
It contains the most complete and accurate version of this series in the best sound possible at the time of creation. An updated version will be issued if more episodes or better sounding ones become available.
This is the Single Episodes Page. The Certified Set includes extras not found here. It is located at OTRR Certified Set. This Single Episodes page is provided in case you want to sample the shows.Note that in many cases, file names have been modified from the original OTRR names to conform to archive.org naming requirements.
If you are interested in preserving Old Time Radio (OTR), you may wish to join the Old Time Radio Researchers Group at Facebook and Groups.io.
Relax, listen, and enjoy!
OTRR Maintained Set -- This set contains all known episodes in the best available audio condition with the most accurate dates and titles known to be in general circulation and based on current research at the time of release. Replaces OTRR Certified Accurate and OTRR Certified Complete.
OTRR Non-Maintained Set -- A collection of shows that has not gone through the OTRR Maintenance process.
Pre-2019 OTRR Definitions:
OTRR Certified Accurate -- A series that was "Certified Accurate" indicated that all the episodes were properly identified and labeled based on current information but that the series did not contain all known extant episodes.
OTRR Certified Complete -- A series that was "Certified Complete" achieved the highest level of certification available under the OTRR Certified Standards. This certification level implied that all the files in the series were "Certified Accurate" and also indicated that the series was as complete as possible and included all circulating episodes.
OTRR Non-Certified -- A collection of shows that has not gone through the OTRR Certification process.
Also, beginning in 2019, the version numbers of our OTRR releases changed format -- instead of v1.0 or v2.1, we are now using a version number that reflects the year and month the set was released. The format used is a two-digit year followed by a two-digit month. For example, "v1906" indicates a set that was released in June 2019, or "v1910" indicates a set released in October 2019.
NOTE: There are no passwords for any of our ZIP files. If you are prompted for a password, before downloading the file again, try unzipping the file into a shorter full folder path name -- for example, unzip to "C:\" instead of "C:\Documents and Settings\your_Windows_ID\some_other_folder\". Sorry, some of our releases contain long folder and file names, which sometimes manifests itself on the Windows platform as prompting for a password for the ZIP file. Or try renaming the ZIP file itself to a shorter name before unzipping.